Wash hair a lot of hair loss may be life factors, seasonal changes or androgenic alopecia and other reasons. 1. Life factors: if usually often stay up late, sleep quality is not good, or recent bad mood, etc., may lead to hair loss, if usually often permed and dyed hair or the use of shampoo irritating strong, may also lead to excessive hair loss, and often will be too tight hair tie too high and so on, so that the hair is involved, is also prone to lead to hair loss. 2. Seasonal changes: some people in the change of seasons will appear regular hair loss, which is usually a normal phenomenon, hair loss lasts a relatively short period of time, seasonal changes will slowly return to normal, usually do not need special treatment. 3. Androgenetic alopecia: androgenetic alopecia is more common in life, may be related to bad habits or hereditary factors, the main symptom is that the hair is easy to fall out. The main symptom is that the hair will fall out easily. There may be other reasons for hair loss, so it is recommended to go to the regular hospital for relevant examinations to make a clear diagnosis, and then use the appropriate solutions according to the situation.